نتایج جستجو برای: carreau yasuda model

تعداد نتایج: 2104727  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - پژوهشکده علوم انسانی و اجتماعی 1391

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

2011
Jae-Sung Choi Sung Chul Hong Hyuck Moon Kwon Sang-Ho Suh Jeong Sang Lee

BACKGROUND Although considerable efforts have been made to improve the graft patency in coronary artery bypass surgery, the role of biomechanical factors remains underrecognized. The aim of this study is to investigate the influences of geometric configurations of the bypass graft on hemodynamic characteristics in relation to anastomosis. MATERIALS AND METHODS The Numerical analysis focuses o...

Journal: :journal of petroleum science and technology 0
bader h. albusairi kuwait university adam al-mulla kuwait university

the rheological properties of four different kuwaiti crude oils in the presence of polyacrylamide (paa) were investigated. paa was varied at three different concentrations of 25, 50, and 75 ppm to study the viscoelastic properties in the untreated samples. four different temperatures (25, 30, 35, and 40 °c) were used to evaluate different viscoelastic parameters of the treated and untreated kuw...

Journal: :The International Journal of Advanced Manufacturing Technology 2022

Abstract The present study deals with the simulation of filling process in injection molding using Ansys CFX and its experimental validation. For this purpose, an exemplary mold is investigated numerically as well experimentally at different time steps. numerical investigation, a suitable model elaborated CFX, which enables such comparison. In particular, representation viscosity for polymers n...

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